The First Green Generation, Circa 1970

Hour 1: What was the first Earth Day like? In observance of today’s 44th Earth Day, we’ll look back at the history of the celebration and its influence on the environmental movement with Adam Rome, who teaches environmental history at the University of Delaware. His new book is “The Genius of Earth Day: How a 1970 Teach-In Unexpectedly Made the First Green Generation” (Hill and Wang, 2013).